What is a perpetual calendar? We have a month and a year - and we need to draw a calendar for this month like the one that hangs on the wall. I will build an analogue of the calendar from the Windows operating system - which hangs in the taskbar next to the clock based on the Arduino platform. The calendar itself will be output to the "port monitor" program of the Arduino IDE development environment.
Download the code from the video and additional details from the link
https://zen.yandex.ru/media/id/5d5ff4...